The 244 Greene Street project included the complete renovation of an existing eight story masonry building, approximately 100 years old, which was part of the NYU campus. The renovated facility will be used for faculty and administrative offices, meeting rooms and reception areas. There were limited changes to the building envelope- the brick walls remain intact, the windows and roof were partially replaced. The mechanical, electrical and plumbing systems were all updated. All interior finishes were replaced at Levels 1-8, with some finishes remaining at the cellar level. The design team included Marble Fairbanks Architect and Thomas Polise Consulting Engineer.
Vidaris provided energy modeling, NYSERDA new construction and LEED services. The project achieved Gold certification within the LEED-NC v3 rating system. Modeling was done in accordance with the District Energy System option, allowing the project to take credit for campus plant cogeneration instead of being limited to energy efficiency measures within the building renovation. Vidaris modeled their campus plant which allowed an earning 17 EAc1 points.
In addition to pursuing LEED certification, the building was designed in accordance with the NYU Design Standards and Guidelines, September 2009 edition. Sustainable features of the project include the following:
- Energy efficiency measures including improved wall and roof insulation, new windows, CO2 sensors, air-side economizer on AHU, and VSD on chilled water pumps in addition to the campus plant cogeneration. Overall, the project is expected to be 40.87% more efficient than a building designed to meet the minimum requirements of ASHRAE 90.1-2007.
- Efficient lighting design with, occupancy sensors and lighting power densities significantly lower than ASHRAE 90.1-2004. Design will also minimize light pollution.
- High SRI value roof membrane minimizing heat island effect
- Water use reductions for plumbing fixtures of 27%, compared to fixtures that meet the minimum federal requirements established in the Energy Policy Act of 1992.
- Over 96% of the existing structural elements (walls, floors and roof) have been preserved
- Recycling of 75.6% of the construction and demolition waste generated during the project
- Use of 10.0% by cost of materials containing recycled content including concrete, steel, insulation, acoustical ceiling tiles and gypsum wallboard
- Use of 10.1% by cost of regionally-manufactured materials (extracted and produced within 500 miles of the site)
- Outside air ventilation more than 30% above ASHRAE 62.1-2007 minimums.
- Implementation of an Indoor Air Quality Management Plan throughout construction and building flush-out
- Use of low-emitting adhesives, sealants, paints, coatings and flooring materials
- Composite wood which is free of urea-formaldehyde resin